package com.heima.wemedia.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.heima.model.common.dtos.ResponseResult;
import com.heima.model.common.enums.AppHttpCodeEnum;
import com.heima.model.wemedia.dtos.WmLoginDto;
import com.heima.model.wemedia.pojos.WmUser;
import com.heima.utils.AppJwtUtil;
import com.heima.wemedia.mapper.WmUserMapper;
import com.heima.wemedia.service.WmUserService;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.StringUtils;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.util.DigestUtils;

import java.util.Date;
import java.util.HashMap;
import java.util.Map;

@Service
@Transactional
@Slf4j
public class WmUserServiceImpl extends ServiceImpl<WmUserMapper, WmUser> implements WmUserService {

    @Override
    public ResponseResult login(WmLoginDto dto) {
        //1.检查参数
        if (StringUtils.isBlank(dto.getName()) || StringUtils.isBlank(dto.getPassword())) {
            return ResponseResult.errorResult(AppHttpCodeEnum.PARAM_INVALID, "用户名或密码为空");
        }

        //2.查询用户
        WmUser wmUser = getOne(Wrappers.<WmUser>lambdaQuery().eq(WmUser::getName, dto.getName()));
        if (wmUser == null) {
            return ResponseResult.errorResult(AppHttpCodeEnum.DATA_NOT_EXIST);
        }

        //3.比对密码
        String salt = wmUser.getSalt();
        String pswd = dto.getPassword();
        pswd = DigestUtils.md5DigestAsHex((pswd + salt).getBytes());
        if (pswd.equals(wmUser.getPassword())) {
            //4.返回数据  jwt
            Map<String, Object> map = new HashMap<>();
            map.put("token", AppJwtUtil.getToken(wmUser.getId().longValue()));
            wmUser.setSalt("");
            wmUser.setPassword("");
            map.put("user", wmUser);
            return ResponseResult.okResult(map);

        } else {
            return ResponseResult.errorResult(AppHttpCodeEnum.LOGIN_PASSWORD_ERROR);
        }
    }

    //用于远程调用  //查询自媒体是否存在  创建自媒体账号
    @Override
    public ResponseResult addUser(String name) {
        //名字判空
        if (StringUtils.isBlank(name)) {
            return ResponseResult.errorResult(AppHttpCodeEnum.PARAM_INVALID);
        }

        //名字去重
        LambdaQueryWrapper<WmUser> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(WmUser::getName, name);
        int count = this.count(queryWrapper);
        if (count > 0) {
            return ResponseResult.errorResult(AppHttpCodeEnum.DATA_EXIST, "名字重复");
        }

        //创建新用户
        WmUser wmUser = new WmUser();
        wmUser.setName(name);
//        wmUser.setApUserId(userId);
        wmUser.setCreatedTime(new Date());//创建时间
        wmUser.setStatus(9);//正常可用

        //新建用户
        boolean saveResult = this.save(wmUser);
        if (!saveResult) {
            return ResponseResult.errorResult(AppHttpCodeEnum.SERVER_ERROR);
        }

        return ResponseResult.okResult(AppHttpCodeEnum.SUCCESS);
    }
}